Abstract:
The present invention relates to a method in a radio network node of a cellular network, for controlling admission of a UE in a cell covering a region. The method comprises obtaining (710) a location of the UE, comparing (720) information related to a geometric boundary of the region and the obtained location of the UE, and determining (730) whether to admit the UE in the cell based on the comparison.
Abstract:
The invention relates to methods and devices for supporting configuration of a measurement gap pattern for a user equipment (91) requiring measurement gaps for performing an inter-frequency measurement. A radio network node (81) receives an indication (85) from the user equipment (91) that the user equipment (91) is going to perform an inter-frequency measurement for positioning, which inter-frequency measurement requires measurement gaps. The radio network node (81) may determine a measurement gap pattern for performing the inter-frequency measurement and may signal, to the user equipment (91), information (86) to initiate use of the determined measurement gap pattern in the user equipment (91). Alternatively the user equipment (91) configures the measurement gap pattern itself based on a set of pre-defined rules.
Abstract:
Mobility parameters, such as those used in handoff decisions, are based on the speed of User Equipment (UE) (10), measured at two points. UE speed estimates are taken at both the UE (10) and base station (12), and the two speeds compared. If the speeds match (or differ by less than a predetermined amount), one or more mobility parameters are adapted based on the UE speed. These parameters may include time to trigger (TTT), time to satisfy (TTS), measurement time, forgetting factor, β, measurement period (Tm), handover prohibit timer, MeasurementReportingmargin, HOmargin, hysteresis, and the like. The UE speed comparison may be performed at the UE (10) or at the base station (12). In one embodiment, a plurality of UE speed ranges are defined (e.g., low, medium, high), with corresponding mobility parameter values associated with each range.
Abstract:
A user equipment for handling a cell change from a first cell to a second cell in a wireless communications network alters a duration of a measurement time over which at least one measurement is performed and alters a measurement bandwidth of the at least one measurement. The alterations may be performed based on associated bandwidths of the first and second cells. A network node sends, to the user equipment, a notification of a cell change and information associated with the cell change and also receives measurement data of at least one measurement performed over an altered measurement bandwidth and an altered duration of measurement time where the alterations are based on the information associated with the cell change.
Abstract:
Embodiments herein relate to a method in a radio network node (12) for enabling an enhanced cell Identity, E-CID, timing measurement for positioning of a user equipment (10) in a cell (11) served by the radio network node (12). The radio network node (12) obtains information that the user equipment (10) in the cell (11) is requested to perform an E-CID timing measurement. The radio network node (12) then configures uplink and/or downlink signals that are needed to perform the E-CID timing measurement.
Abstract:
The present invention relates to a user equipment and a network node, and to related methods of supporting resource efficient ad hoc networking between user equipments (UEs) of a cellular network. This is addressed by a solution where the network node is supporting the ad hoc networking between UEs. The network node is capable of 5 accessing a user equipment capability database and receives (210, 220) update messages from UEs (UE1, UE2) comprising information regarding the capabilities of the user equipments such as supported frequency bands, RATs and antenna modes. The network node updates (230) the user equipment capability database (DB) with the information comprised in the received update message, and determines based on the 10 information stored in the user equipment capability database and a matching algorithm (240), that UE1 and UE2 have matching capabilities and are able to communicate wirelessly. The network node then transmits (250) an ad hoc “paging” message comprising the UE1 and UE2 identities. The “paging” message is received by the UE1 and UE2 identified in the “paging” message, and UE1 may then e.g. establish an ad hoc 15 network with UE2 (260).
Abstract:
A first radio network node (HBS1) adapts its physical cell identifier (PCI1) based on a comparison of its PCI1 to a second PCI (PCI2) used by a neighboring interfering second radio network node (e.g., another HBS2 or a macro node). The first radio network node HBS1 determines the second PCI based on one or more radio measurements performed on a cell 402 and/or on a UE 404 served by the second node. The adaptation of the cell identifier PCI1 is used for one or more radio network management tasks, e.g., resource management such as interference mitigation in a heterogeneous network, radio network planning, etc.
Abstract:
A method for transmitting data flows between a network element and a number of receivers over a first channel. The method comprises the steps of: performing a link adaptation for the transmission of a data flow by said network element, and transmitting the data flow, transmitting an indication of a channel quality required for reception of the data flow on a second channel, receiving by said receivers said indication of channel quality, measuring a link quality by said receivers by monitoring a pilot channel, comparing said measured link quality with said received indication of the channel quality, and transmitting to said network element result of said comparison of said measured link quality with said received indication of the channel quality, if said result is lower than a predetermined value. The invention also relates to a network element and a user equipment.
Abstract:
A radio network resource controller directs a first network node associated with a first cell region, or a wireless terminal in communication through the first cell region, to measure and report radio resource-related data selected from the group consisting of: resource activity per channel; the number of transmitted power samples that exceed a threshold over a measurement period; and, channel quality samples that exceed a quality threshold. The controller then receives at least one measurement report of the radio resource-related data and, as a function of the radio resource-related data in the first cell region, dynamically reallocates the distribution of resources, such as radio-frequency channels, between the first cell region and at least a second cell region. The invention has a particular advantage in TDD mode of operation where efficient and dynamic interference mitigation is needed to combat the inherent mobile-to-mobile and base station-to-base station interference.
Abstract:
Network nodes and methods therein for enabling use, in a cell, of different types of mobile terminals. A method in a network node (501) associated with the cell comprises supporting (302), at least part of, at least two frequency bands having a respective predefined frequency band indicator in said cell. The method further comprises signaling (304) information associated with said at least two frequency bands to UEs in the cell, thus enabling use of UEs operating in a respective different one of said at least two frequency bands in the cell.